To find difference, we first go forward till we reach the bigger number and then backward till we reach the smaller number.

To find sum, we first go till the first number and then move further from there to reach the next number.

Directions: Answer the following questions.
1) Draw a number line and show zero, positive numbers and negative numbers.
2) Also write at least ten examples with subtraction and addition using number line.

Q 1: What are the numbers to the right of zero?negativepositive

Q 2: What are the numbers to the left of zero?positivenegative

Q 3: You can write a negative number without a negative sign.TrueFalse

Q 4: Fill in the blank on a number line -1,0,1,2,3,4,5,6,7,8,9,___110100

Q 5: Fill in the blank on a number line 0,25,50,__,1007550100

Q 6: You can write a positive number with or without a positive sign.TrueFalse

Q 7: On a number line with 1, 500, 1000, 1500, _____ what is the next number.250030002000

Q 8: Which number on the number line is neither positive nor negative?201